Table of Contents
How does different temperatures affect plant growth?
Germination increases in higher temperatures – up to a point. Once the seeds reach optimum temperatures, which depends on the plant, germination begins to decline. So whether it’s extreme heat or cold, temperature does affect plants and their growth.
Does direction affect plant growth?
Plants respond directly to Earth’s gravitational attraction, and also to light. Stems grow upward, or away from the center of Earth, and towards light. Roots also will change direction when a plant is tipped on its side. Auxin concentrates on the lower sides of the roots and inhibits the elongation of root cells.
How does air help plants grow?
Air is vital to a plant’s growth and survival. Plants take in carbon dioxide from the air and convert it into glucose through the process of photosynthesis, which is powered by sunlight. Without air, plants would not be able to create glucose and would die. They must have access to carbon dioxide to survive.
What causes a plant to grow upward?
Geotropism is the influence of gravity on plant growth or movement. Simply put, this means that roots grow down and stems grow up. In this case, the stimulus is gravity. Upward growth of plant parts, against gravity, is called negative geotropism, and downward growth of roots is called positive geotropism.
How does the environment affect the growth of plants?
In some cases, poor environmental conditions (e.g., too little water) damage a plant directly. In other cases, environmental stress weakens a plant and makes it more susceptible to disease or insect attack. Environmental factors that affect plant growth include light, temperature, water, humidity, and nutrition.
How does the amount of light affect plant growth?
Three principal characteristics of light affect plant growth: quantity, quality, and duration. Light quantity refers to the intensity, or concentration, of sunlight. It varies with the seasons. The maximum amount of light is present in summer, and the minimum in winter.
Why is it important to know plant hardiness zone?
This date is important to know because if it is too cold, your new plants will not do well so you have to wait until after this date to plant. Plant hardiness zone helps growers determine what plants can thrive at a specific location. Plants will do well in the zone they are labeled at and in the zone numbers higher than that.
What’s the minimum temperature for plants in Zone 8?
Zone 8b has a minimum average temperature of 15 to 20 degrees F Each of the two subzones can experience harsher temperatures depending on weather conditions. What Plants Can I Grow in Zone 8?